If she brings politics into her job duties, and it makes you feel uncomfortable, you should tell her. If she persists or gets offended and retaliates against you, you need to file a complaint in writing to whomever oversees her supervision. If you get periodic written evaluations from her, and you don’t agree with her assessment, refuse to sign it, or sign it and put your own comments on the evaluation sheet.
ignoring does a lot. people might push harder for awhile but eventually they get nothin’. so they move on.